Dead Honda e

Faults and Technical chat for the Honda E
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ajms0288
Posts: 83
Joined: Sat Nov 28, 2020 11:25 am
Location: Rotherham UK

Post by ajms0288 »

I’ve just ordered a CTEK battery sense on the strength of this thread, so thanks to all for the advice and the original post (er)
Blue Advance 17in. Delivered 11th March 2021. Love it. 1900 miles 3.4m/kWh
Kangoo ZE delivered 1st April 2021. No AC, old school but £150/month plus VAT. 2600 miles 3.9m/kWh

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londiniumperson
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Joined: Fri Oct 11, 2019 2:37 pm

Post by londiniumperson »

milligoon wrote: Mon May 17, 2021 3:15 pm I was just wondering why there is no voltage on that screen shot, even when there is no charging it should show a voltage, maybe your app wasn't live to the battery monitor?

Given your battery was really flat the other day it's possible the deep discharge (for whatever reason) has damaged the battery. Something like a ctek or optimate battery charger may condition it better than the normal charging of the car or normal simple battery charger.

That said I'd be asking Honda for a new battery before you get stranded somewhere.
Honda had my car for 2 days a few weeks ago looking at the window not closing fully every time issue as well as the recall update and supposedly the battery was perfectly OK after it had failed completely just before then.
I'll gather some more data from the dongle before asking them some questions.
I've got no confidence in their ability to do anything, they've failed me at every single step, from ordering through to the present day, I think zero out of 10 would be a generous score.
My phone wasn't in range of the CTEK dongle when I did
that last screenshot. Here's the latest after I arrived home:

IMG_20210517_180721.jpg

2022 Advance in Crystal Black Pearl on 17's - 08/2020-Current
2015 VW Tiguan (Pure White) - 04/2018-Current
1991 Honda Beat PP1 (Festival Red) - 11/2022-Current
milligoon
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Joined: Sat Aug 15, 2020 11:22 pm

Post by milligoon »

If you know someone with a battery load tester, maybe AA or RAC etc they could give you an independent report on the state of health of the battery. I'd say that is badgered just a none qualified lay persons opinion of course
Ex e owner
milligoon
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Post by milligoon »

How's your battery doing?
Ex e owner
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londiniumperson
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Joined: Fri Oct 11, 2019 2:37 pm

Post by londiniumperson »

Not good, a max of 60% charge & a min of about 18%.
It's pretty bad if an owner of a brand new car has to spend time diagnosing faults that a dealership should, especially when they know that the battery was completely dead one morning after not being driven for 3 days and also that the driver's window intermittently doesn't shut fully, have it for 2 days and declare that there's no issue.
Either the battery is fubar'd or the monitor is faulty.
2022 Advance in Crystal Black Pearl on 17's - 08/2020-Current
2015 VW Tiguan (Pure White) - 04/2018-Current
1991 Honda Beat PP1 (Festival Red) - 11/2022-Current
milligoon
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Joined: Sat Aug 15, 2020 11:22 pm

Post by milligoon »

Given you've had so many issues with the battery already my money is on the battery, lead acid batteries don't take kindly to being run flat.
Ex e owner
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londiniumperson
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Joined: Fri Oct 11, 2019 2:37 pm

Post by londiniumperson »

I've now had the CTEK battery monitor on my car for 2 weeks & I am awaiting a call back from the dealer to arrange for them to look at it (EDIT: Booked in 14 June) and we'll see if the battery or the monitor is at fault. BTW I'm not taking bets on this ;)
Those rapid increase in voltage (spikes) appear to match up with charging of the main traction battery & the reduction in voltage is usually when the car has ben sat unused.
You might be able to see that when I drive the car, the voltage increases slightly, then levels off during the drive.
That final peak was during a charge with that final drop off being where the car has unplugged from the charger an sat on my drive (with one 4 mile drive 9pm on 27 May):

IMG_20210529_122936.jpg

2022 Advance in Crystal Black Pearl on 17's - 08/2020-Current
2015 VW Tiguan (Pure White) - 04/2018-Current
1991 Honda Beat PP1 (Festival Red) - 11/2022-Current
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bogga
Posts: 428
Joined: Wed May 20, 2020 2:41 pm

Post by bogga »

londiniumperson wrote: Sat May 29, 2021 12:11 pm I've now had the CTEK battery monitor on my car for 2 weeks...
What happens if you fully charge the 12v battery using a mains charger, and then see what the CTEK says. Is the CTEK monitor calibrated for that particular battery?
milligoon
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Post by milligoon »

The ctek compares to what amperage you set in the app.
Ex e owner
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londiniumperson
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Joined: Fri Oct 11, 2019 2:37 pm

Post by londiniumperson »

milligoon wrote: Sat May 29, 2021 6:44 pm The ctek compares to what amperage you set in the app.
It doesn't measure amps, only voltage.
Setting a different battery amperage made no difference. I know because originally I left it at the default which I think was 75Ah, then after a couple of days changed it to 45Ah once I had realised.
2022 Advance in Crystal Black Pearl on 17's - 08/2020-Current
2015 VW Tiguan (Pure White) - 04/2018-Current
1991 Honda Beat PP1 (Festival Red) - 11/2022-Current
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